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From: AtleDreier via AccessMonster.com on 7 May 2010 02:21
Hello!

This is concatenating with a twist.

I have three tables:

Tag:
*tag

Doc_ref:
*DocID
*GenID

Document;
*DocID
Doc_Type

GenID linked to Tag with a one to many relationship
Document!DocID to Doc_ref!DocID with a one to many

Now, what I need is to get one field with all the DocID values with a certain
type for each tag

For Tag1 i need a field with "Doc1 - Doc2" where doc_type is "type1" and so
on.

How can this be done?
It is not very often I need this done, so it could be a maketable query or
code.

--
Message posted via AccessMonster.com
http://www.accessmonster.com/Uwe/Forums.aspx/access-queries/201005/1

From: KARL DEWEY on 7 May 2010 15:43
I did not follow your process. Can you try explaining it another way?
Can you post sample data and example of how ypou would like the results to
look?
--
Build a little, test a little.


"AtleDreier via AccessMonster.com" wrote:

> Hello!
>
> This is concatenating with a twist.
>
> I have three tables:
>
> Tag:
> *tag
>
> Doc_ref:
> *DocID
> *GenID
>
> Document;
> *DocID
> Doc_Type
>
> GenID linked to Tag with a one to many relationship
> Document!DocID to Doc_ref!DocID with a one to many
>
> Now, what I need is to get one field with all the DocID values with a certain
> type for each tag
>
> For Tag1 i need a field with "Doc1 - Doc2" where doc_type is "type1" and so
> on.
>
> How can this be done?
> It is not very often I need this done, so it could be a maketable query or
> code.
>
> --
> Message posted via AccessMonster.com
> http://www.accessmonster.com/Uwe/Forums.aspx/access-queries/201005/1
>
> .
>
From: John Spencer on 9 May 2010 11:07
I've been pondering your request and could not come up with anything more
efficient than the following.

Step 1: Create a Saved Base Query with all the necessary information

SELECT Tag.Tag, Document.DocID, Doc_Type
FROM (Tag Inner Join Doc_Ref
ON Tag.Tag = Doc_Ref.GenID)
INNER JOIN Document
ON Doc_Ref.DocId = Document.DocID

Step2: Now using that with one of the VBA concatenation functions (see
references below) you can build a query like the following. I used Duane
Hookom's function.

SELECT DISTINCT Tag.Tag, Doc_Type
, Concatenate("Select DocId FROM qSavedQuery as Q WHERE Q.Doc_Type='" &
qSavedQuery.Doc_Type & "' AND Q.Tag ='" & qSavedQuery.Tag & "'", " : ") as TheList
FROM qSavedQuery

Here are links (url) to three examples.

Duane Hookom
http://www.rogersaccesslibrary.com/forum/forum_posts.asp?TID=16

Allen Browne
http://allenbrowne.com/func-concat.html

The Access Web
http://www.mvps.org/access/modules/mdl0004.htm

John Spencer
Access MVP 2002-2005, 2007-2010
The Hilltop Institute
University of Maryland Baltimore County

AtleDreier via AccessMonster.com wrote:
> Hello!
>
> This is concatenating with a twist.
>
> I have three tables:
>
> Tag:
> *tag
>
> Doc_ref:
> *DocID
> *GenID
>
> Document;
> *DocID
> Doc_Type
>
> GenID linked to Tag with a one to many relationship
> Document!DocID to Doc_ref!DocID with a one to many
>
> Now, what I need is to get one field with all the DocID values with a certain
> type for each tag
>
> For Tag1 i need a field with "Doc1 - Doc2" where doc_type is "type1" and so
> on.
>
> How can this be done?
> It is not very often I need this done, so it could be a maketable query or
> code.
>
From: AtleDreier via AccessMonster.com on 10 May 2010 04:06
Thank you, I'm running the query now. Will report back, it's very slow! :-)

I've got around 12500 references, and I get about 5 references per second, so
I estimate around 40 minutes to run the query... :-)



John Spencer wrote:
>I've been pondering your request and could not come up with anything more
>efficient than the following.
>
>Step 1: Create a Saved Base Query with all the necessary information
>
>SELECT Tag.Tag, Document.DocID, Doc_Type
>FROM (Tag Inner Join Doc_Ref
> ON Tag.Tag = Doc_Ref.GenID)
>INNER JOIN Document
> ON Doc_Ref.DocId = Document.DocID
>
>Step2: Now using that with one of the VBA concatenation functions (see
>references below) you can build a query like the following. I used Duane
>Hookom's function.
>
>SELECT DISTINCT Tag.Tag, Doc_Type
>, Concatenate("Select DocId FROM qSavedQuery as Q WHERE Q.Doc_Type='" &
>qSavedQuery.Doc_Type & "' AND Q.Tag ='" & qSavedQuery.Tag & "'", " : ") as TheList
>FROM qSavedQuery
>
>Here are links (url) to three examples.
>
>Duane Hookom
>http://www.rogersaccesslibrary.com/forum/forum_posts.asp?TID=16
>
>Allen Browne
>http://allenbrowne.com/func-concat.html
>
>The Access Web
>http://www.mvps.org/access/modules/mdl0004.htm
>
>John Spencer
>Access MVP 2002-2005, 2007-2010
>The Hilltop Institute
>University of Maryland Baltimore County
>
>> Hello!
>>
>[quoted text clipped - 25 lines]
>> It is not very often I need this done, so it could be a maketable query or
>> code.

--
Message posted via http://www.accessmonster.com

From: AtleDreier via AccessMonster.com on 10 May 2010 05:55
It works, although it's pretty slow.
I'll try some different concatenate functions and see if there are faster
ones. It's not a big problem, it gives me an exuse to get coffee and a donut!
:-D

Thank you!


AtleDreier wrote:
>Thank you, I'm running the query now. Will report back, it's very slow! :-)
>
>I've got around 12500 references, and I get about 5 references per second, so
>I estimate around 40 minutes to run the query... :-)
>
>>I've been pondering your request and could not come up with anything more
>>efficient than the following.
>[quoted text clipped - 37 lines]
>>> It is not very often I need this done, so it could be a maketable query or
>>> code.

--
Message posted via http://www.accessmonster.com

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